Skill rating

Cloudflare D1 is a serverless SQLite database for Cloudflare Workers. Use when someone asks for "Cloudflare D1", "SQLite at the edge", "database for Workers", "serverless SQL" or "D1 migrations". Cove

Force LLMs to return typed, validated JSON — not free-text. Use when someone asks to "get structured data from LLM", "parse LLM response as JSON", "make AI return typed output", "validate LLM output",

Run local SEO from your terminal via the SEOG MCP server — Google Business Profile management, map-pack rank tracking and geo-grid scans, review sync and replies published to Google, competitor intell

Audits and improves how a website is found and cited by AI answer engines (Google AI Overviews and AI Mode, ChatGPT search, Perplexity, Claude, Copilot). Use for Generative Engine Optimization (GEO, A

Surveys a real repository for structural problems and turns the findings into a staged plan: measures churn, size, import cycles, coupling and co-change, finds shallow modules (wrappers that hide noth

Installs a Claude Code PreToolUse hook that stops destructive git commands before the shell runs them: force pushes, pushes to protected branches, reset --hard, clean -f, checkouts and restores that d

Builds a change as a sequence of small steps, each of which leaves the project building, passing its checks and safe to merge or revert on its own. Use when a user asks to implement a feature that spa

Runs a large refactor or migration across many files by splitting it into units that cannot collide, mapping the code with read-only subagents, dispatching one worker per unit in dependency order, and

Finds out why a SwiftUI screen is slow and what to change: classifies the symptom as a hang, a hitch or excessive updates, audits the code for the usual causes, reads Instruments evidence (the SwiftUI

Diagnoses and fixes Swift concurrency problems: data-race-safety errors in the Swift 6 language mode, actor isolation, Sendable, moving work off the main actor, and wrapping callback APIs in async fun

Plans, researches and writes comparison pages: "[rival] alternatives", "[product] vs [rival]", "[rival A] vs [rival B]" and switching guides. Builds each page from a ledger of sourced, dated facts and

Creates and maintains a macOS menu bar app whose Xcode project is generated by Tuist: a SwiftUI MenuBarExtra scene, no Dock icon, manifests in Swift, and a terminal loop that rebuilds and relaunches t

Turns a Swift Package Manager executable into a real macOS .app without an Xcode project: builds the binary, assembles the bundle and Info.plist, signs it, and for distribution notarizes, staples and

When the user needs to build file upload functionality for a web application. Use when the user mentions "file upload," "image upload," "upload endpoint," "multipart upload," "presigned URL," "S3 uplo

Produces a refactor plan and files it as a GitHub issue for review: interviews the user about the pain and the constraints, checks every claim against the code, weighs alternatives, pins down behaviou

Restructures an existing SwiftUI view without changing what the user sees: splits an oversized body into small view types with narrow inputs, moves actions and business logic out of the view, replaces

Integrate with Google Calendar and Microsoft Outlook Calendar for scheduling, event management, and availability tracking. Use when someone asks to "create calendar events", "check availability", "sch

Designs a self-hosted feature flag system with deterministic user bucketing, percentage rollouts, targeting rules and flag lifecycle management. Use when the user mentions "feature flag," "feature tog

Applies behavioural science to marketing decisions using only effects with solid published evidence, named as the research literature names them, with their replication record. Use when someone asks a

Applies and reviews Liquid Glass in SwiftUI apps: decides which views should get the material and which should not, uses glassEffect, GlassEffectContainer, glass button styles and morphing transitions

Writes the App Store "What's New in This Version" text for an app update from the repository's commit history: finds the range since the last shipped version, separates changes users can notice from i

Rebuilds how a past feature, fix or release came about by reading the local ax history graph (sessions, commits, subagents) through the ax CLI. Use when asked "how did we build X", "what made Y work",

Makes working code easier to read and change without altering what it does, and proves the behaviour stayed the same. Use when someone says "simplify this", "clean up this function", "this file is a m

Audits and reorganises what an AI coding agent carries in its context window: instruction files, path-scoped rules, skills, subagents, hooks and the running conversation. Use when someone says "the ag

Designs the public interface of a module before any implementation exists: writes the caller scenarios first, produces three candidates with genuinely different shapes, type-checks each one against th

Designs and audits the moments inside a product where an account is asked to pay or to move to a higher plan: feature gates, usage-limit screens, trial-ending and trial-expired states, seat and add-on

Audits a repository to decide which agent skills it should have: inventories the skills and instruction files already present, mines session history, memory, scripts and commits for procedures that ke

Sets up and optimizes search engines for applications. Use when someone asks to "add search to my app", "set up Elasticsearch", "configure Algolia", "fix search relevance", "add autocomplete", "fuzzy

Debug and optimize serverless functions (AWS Lambda, Vercel Functions, Cloudflare Workers). Use when someone asks to "debug Lambda", "trace serverless request", "fix cold starts", "analyze CloudWatch

Builds SwiftUI screens and app structure from a small set of proven patterns: who owns each piece of state, a tab-and-navigation-stack app shell, enum-driven routes and sheets, async loading with expl

Create, optimize, and automate content for Twitter/X including tweets, threads, polls, and API automation with the X API v2. Use when someone asks to "write a tweet", "create a Twitter thread", "grow

Builds and maintains a ubiquitous language, the shared domain glossary from domain-driven design, out of what the team says and what the code names things. Use when someone says "define our domain ter

Audit project dependencies for outdated packages, security vulnerabilities, and breaking changes. Use when someone asks to "check for outdated packages", "audit dependencies", "find vulnerable depende

Plans a free web tool built to bring in customers: picks the idea, checks it against the real buyer, estimates payback, decides where to ask for an email, scopes the first version and defines how to j

Builds an iOS app, installs and launches it on a simulator, then collects evidence about a runtime problem: unified logs, console output, screenshots, the accessibility tree, crash reports and an LLDB

Create, optimize, and automate LinkedIn content for personal branding, lead generation, and B2B marketing. Use when someone asks to "write a LinkedIn post", "grow on LinkedIn", "LinkedIn content strat

Cuts LLM API spend by measuring cost per feature and user, routing easy requests to cheaper models, using provider prompt caching, adding a semantic response cache, and using the batch APIs. Use when

Explains one file, function, class, table or folder of a codebase in depth, starting from the knowledge graph built by the Understand-Anything plugin and confirming every statement in the source. Use

Query the Unusual Whales API for unusual options flow, dark pool prints, market tide sentiment, gamma exposure, congressional trading, and stock greeks. Use when someone asks about "unusual options ac

Explains how to find, choose, install and invoke agent skills (SKILL.md folders that follow the Agent Skills specification) in Claude Code, Codex, Gemini CLI and Cursor, each by its own documented mec

When the user wants to set up authentication and authorization for a web application. Use when the user mentions "auth," "login," "OAuth," "SSO," "single sign-on," "role-based access," "RBAC," "permis

Reviews a business or product plan against simplicity and profitability criteria and returns a written verdict: the plan restated in one sentence, an inventory of its parts tagged keep, replace, defer

Powertools for AWS Lambda is an open-source toolkit that adds structured JSON logging, X-Ray tracing, CloudWatch metrics (EMF), idempotency, batch processing, parameter fetching and API event handlers

Frameworks and queries for measuring a software product: North Star and input metrics, AARRR funnels, retention cohorts, and A/B test design with sample-size math. Use when someone asks to "define pro

When the user needs to design database schemas and queries optimized for real-time applications. Use when the user mentions "chat database," "message storage," "real-time sync," "message history," "un

Create, optimize, and manage YouTube content for channel growth, audience building, and monetization. Use when someone asks to "grow on YouTube", "optimize YouTube videos", "YouTube SEO", "YouTube Sho

Builds a content strategy a small team can execute: audience needs backed by counted evidence, an audit of what is already published, a topic map with one page per search intent, a scored backlog, a 9

Google AI Studio and the Gemini API give programmatic access to Gemini models for multimodal (text, image, video, audio, PDF) generation, long context, structured JSON output, function calling and Goo

Works out how fast a small business can grow on its own money and capacity, and whether a specific commitment (a hire, a lease, an ad budget, a large contract) is affordable. Computes contribution mar

HIPAA compliance for software that handles protected health information (PHI): which data counts as PHI, what the Security Rule requires of encryption, access control, audit controls and logoff, how b